Temperature and Its Effects on Respiration in Plants and Animals IntroductionCellular respiration is the process of breaking down organic compounds to create usable energy for plants and animals. Energy that results from this metabolic process is stored in the form of ATP (adenosine triphosphate) but carbon dioxide and water are also end products of this reaction. This makes it possible to study the amount of respiration of a plant or animal by measuring the rate at which carbon dioxide is released by the organism. In this experiment, crickets and germinating seeds will be tested at three different temperature ranges and the carbon dioxide output measured and compared. Method

To prepare the test, insert the CO₂ (carbon dioxide) probe into an empty respiration chamber and allow 90 seconds for the probe to warm up. Next, calibrate the CO₂ probe and allow 30 seconds for the CO₂ reading to be calculated and record the base reading. After the base reading has been taken weigh an empty respiration chamber in grams and then place 5 to 10 adult crickets, or 5 to 10 germinating seeds into the respiration chamber. Record the weight once again with both the respiration chamber and the organisms combined. Now, subtract the weight of the empty respiration chamber from the weight of the organisms and the respiration chamber together to determine the mass of the crickets or seeds. Continue to prepare the test by placing the probe snugly onto the respiration chamber and ensure that all other holes are sealed. Begin to measure the CO₂ output in ppm (parts per million) at 10-15° C (ice bath), 20-25° C (room temperature) and 35-40° C (heated water bath.) Allow five minutes for the temperature to stabilize when beginning to test a new temperature range and then proceed to collect data with the CO₂ probe. After a 3 minute period of data collection record the temperature inside the respiration chamber. Find the most linear part of the graph created from the data...

YOU MAY ALSO FIND THESE DOCUMENTS HELPFUL

...﻿Colleen Hamilton
AP Lab 4: Determining the Rate of Cellular Respiration of Peas at Varying Temperatures and Stages of Germination
I. Purpose and Intro
The purpose of this lab is to determine the rate at which germinating peas respirate at varying temperatures and stages of germination.
Cellular respiration is the set of metabolic reactions and processes that takes place in an organism’s cells in order to create ATP from sugar. It occurs in the mitochondria...

...oD
4.1
Respiration
Why organisms undergo respiration
What is respiration and why do we need it?
Respiration is the process whereby energy is released from food molecules (most usually glucose). It takes place inside
living cells, both eukaryotic and prokaryotic. The process takes place inside the cytoplasm and the mitochondria. Energy is
used to synthesise adenosine triphosphate (ATP), which acts as a short-term energy store...

...Enzymes and their importance in plants and animals (25 marks)
Enzymes are biological catalysts, which accelerate the speed of chemical reactions in the body without being used up or changed in the process. Animals and plants contain enzymes which help break down fats, carbohydrates and proteins into smaller molecules the cells can use to get energy and carry out the processes that allow the plant or animal to...

...small for the naked eye.
Cell= basic unit of life.
Cell theory
*Matthias Scheleiden= plants => cell
*Theodor Schwann= animals => cell
*Rudolf Virchow= all cells came from a pre-existing cell
Unicellular= means only one cell
Multi-cellular= means many cell
Plant cells, parts and functions
Cell = is the basic unit of structure and function in a plant.
Cell Wall= is the outermost part of the plant cell.
*between...

...Done by:
Instructor:
Introduction
Respiration is the number of processes which leads to the oxidation of organic compounds to produce the energy. There are several types of respiration, and one of them is aerobic. During the aerobic respiration, human uses the oxygen from atmosphere and produce carbon dioxide. A cardiorespiratory system which includes lungs, heart, blood vessels and others is responsible for all the processes linked to the...

...Abstract
The effect of nature of substrates on the rate of cellular respiration in yeast was determined by using the Smith fermentation tube method. Mixtures of 15ml distilled H2O, 10% yeast suspension and 15ml of the following solutions (all at 10% concentration):1- starch, 2 – lactose, 3 – sucrose, 4 – glucose, 5 – fructose, 6 – distilled water , were poured in six smith fermentation tubes. Cotton balls were plugged in the openings of the tubes and the tubes were kept upright...

...variability among living organism & their
interactions , both within species & between
species, and also between ecosystems.
FLORA AND FAUNA
The plants and animals found in a
particular region are known as Flora
and Fauna respectively, of that
region.
THREATS TO
BIODIVERSITY
INTERNATIONAL TRADE IN WILDLIFE AND WILDLIFE PRODUCTS poses
a threat to the plants and animals .
For example –specific body parts like skins (tiger), furs...

...aerobic respiration, therefore humans can take part in high energy sports (football) and animals are able to hunt, so lipids act as energy storage. His can also be good because it can provide insulation. Increased body fat levels in winter reduce heat losses to the environment; this is good for wild animals. Also lipids are a source of metabolic water. During respiration stored lipids are metabolised for energy, producing water and...